I don't think they would be breaking up that badly if they weren't too long. Chips and chunks coming off is nature's way of trimming. I would just get them trimmed up nicely with a good mustang roll. Shoes are not going to make the feet stronger over time, all you are going to do is "fake" the look of good feet with shoes and epoxy. But they are not going to make the feet any stronger.
Gee, now I sound like a real barefooter, lol!
If the horse is sound I don't think you need shoes. Now if the horse isn't sound, shoes will buy you a quick fix to get the horse sound again and allow the feet to grow out. But mainly what I see is the need of a good trim.